WO2023241486A1

WO2023241486A1 - Antenna heat dissipation assembly and base station

Info

Publication number: WO2023241486A1
Application number: PCT/CN2023/099452
Authority: WO
Inventors: 卜力; 廖若辰; 陈海波; 刘水平; 林志滨; 段凯文
Original assignee: 中兴通讯股份有限公司
Priority date: 2022-06-16
Filing date: 2023-06-09
Publication date: 2023-12-21
Also published as: CN117293507A

Abstract

The present application discloses an antenna heat dissipation assembly and a base station. The antenna heat dissipation assembly (10) comprises a reflecting plate (03), a plurality of cooling fins (02) and a plurality of element units (01), wherein the cooling fins (02) are arranged on the reflecting plate (03), the element units (01) are arranged between adjacent cooling fins (02), and the cooling fins (02) and the reflecting plate (03) are both made of metal.

Description

Antenna cooling components and base stations

Cross-references to related applications

This application is filed based on a Chinese patent application with application number 202210678360.1 and a filing date of June 16, 2022, and claims the priority of the Chinese patent application. The entire content of the Chinese patent application is hereby incorporated by reference into this application.

Technical field

The embodiments of this application relate to the field of 5G communication technology, and in particular to an antenna heat dissipation component and a base station.

Background technique

With the rapid development of 5G (5th Generation Mobile Communication Technology) technology, the requirements for the integration of wireless base stations are getting higher and higher. 5G is an active antenna. The antenna will inevitably generate heat when it is working. A large amount of heat accumulates inside the base station. If heat dissipation is not carried out in time, it will affect the normal operation of the electronic components inside the base station and greatly reduce the practicality of the base station.

Existing base station equipment usually uses a heat dissipation structure on the back of the casing for single-sided heat dissipation, which has low heat dissipation efficiency. Since the front of the base station is covered with a sealed radome to protect the antenna oscillator, the heat generated by the base station cannot be dissipated to the outside world through the antenna.

Contents of the invention

The following is an overview of the topics described in detail in this article. This summary is not intended to limit the scope of the claims.

Embodiments of the present application provide an antenna heat dissipation component and a base station.

In a first aspect, embodiments of the present application provide an antenna heat dissipation component, including: a reflection plate; a plurality of heat dissipation fins, the heat dissipation fins being disposed on the reflection plate; a plurality of vibrator units, the vibrator units being disposed on the Between the heat sinks, the heat sinks and the reflection plate are both made of metal.

In a second aspect, embodiments of the present application provide a base station, including the antenna heat dissipation component described in the first aspect.

Additional features and advantages of the application will be set forth in the description which follows, and in part will be apparent from the description, or may be learned by practice of the application. The objectives and other advantages of the application may be realized and obtained by the structure particularly pointed out in the specification, claims and appended drawings.

Description of the drawings

The drawings are used to provide a further understanding of the technical solution of the present application and constitute a part of the specification. They are used to explain the technical solution of the present application together with the embodiments of the present application and do not constitute a limitation of the technical solution of the present application.

Figure 1 is a schematic structural diagram of an antenna heat dissipation component provided by an embodiment of the present application;

Figure 2 is a three-dimensional schematic diagram of the heat dissipation structure of a base station provided by an embodiment of the present application;

Figure 3 is a schematic cross-sectional view of the heat dissipation structure of a base station provided by an embodiment of the present application.

Detailed ways

In order to make the purpose, technical solutions and advantages of the present application clearer, the present application is described below in conjunction with the accompanying drawings and embodiments. Please elaborate further. It should be understood that the embodiments described here are only used to explain the present application and are not used to limit the present application.

It should be understood that in the description of the embodiments of this application, the meaning of multiple (or multiple items) is two or more. Greater than, less than, exceeding, etc. are understood to exclude the number, and above, below, within, etc. are understood to include the number. If there are descriptions of "first", "second", etc., they are only used for the purpose of distinguishing technical features and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the indicated technical features. The sequence relationship of technical features.

With the rapid development of 5G technology, the requirements for the integration of wireless base stations are getting higher and higher. 5G is an active antenna. The antenna will inevitably generate heat when it is working. A large amount of heat accumulates inside the base station. If heat dissipation is not carried out in time, it will affect the normal operation of the electronic components inside the base station and greatly reduce the practicality of the base station.

In existing base station equipment, the heat dissipation teeth on the back of the casing are usually used for single-sided heat dissipation, and the heat dissipation efficiency is low. Since the front of the base station is covered with a sealed radome to protect the antenna oscillator, the heat generated by the base station cannot be dissipated to the outside world through the antenna.

In order to solve the above problems in some cases, embodiments of the present application provide an antenna heat dissipation component and a base station. The antenna heat dissipation component includes a reflection plate, a plurality of heat sinks and a plurality of vibrator units. The heat sinks are provided on the reflection plate. On the device, the vibrator unit is arranged between adjacent heat sinks, and the heat sinks and reflection plates are both made of metal. Based on this, the antenna heat dissipation component of the present application not only has multiple heat sinks, but also the heat sinks and reflection plates are made of metal, which increases the heat conduction area of the entire antenna component, so that the entire antenna can be used for heat dissipation of the base station. Based on this Compared with the existing base station equipment that uses the heat dissipation structure on the back of the casing for single-sided heat dissipation, with the help of this antenna heat dissipation component, the heat generated by the base station can be dissipated to the outside world through the antenna heat dissipation component, thereby realizing double-sided heat dissipation of the base station equipment. . Moreover, the double-sided heat dissipation method can reduce the heat dissipation area of the existing chassis, thereby reducing the cost of the base station, reducing the weight of the base station, achieving miniaturization and lightweight of the product, and greatly improving the competitiveness of the product.

As shown in Figure 1, Figure 1 is a schematic structural diagram of an antenna heat dissipation component provided by an embodiment of the present application. The antenna heat dissipation assembly 10 can be installed on the base station as a heat sink. The antenna heat dissipation assembly 10 includes a reflection plate 03, a plurality of heat sinks 02 and a plurality of oscillator units 01, wherein the heat sink 02 is provided on the reflection plate 03, and the oscillator unit 01 is provided Between adjacent heat sinks 02, the heat sink 02 and the reflection plate 03 are both made of metal. Therefore, in addition to the heat sink 02, the reflection plate 03 can also be used for heat dissipation, thereby increasing the heat conduction area of the entire antenna assembly, making the entire Antennas can be used for heat dissipation of base stations. It should be noted that the vibrator unit 01 also has a certain heat dissipation effect. The vibrator unit 01 can be made of alloy materials or other materials (such as plastic, PCB, etc.) to achieve heat dissipation.

In an exemplary embodiment, multiple vibrator units 01 and heat sinks 02 are placed on the upper surface of the reflection plate 03. The heat sinks 02 and the reflection plate 03 can be integrated to facilitate mass production.

In an exemplary embodiment, the heat sinks 02 can be arranged at equidistant intervals on the upper surface of the reflection plate 03 , and multiple heat sinks 02 are parallel to each other, and the vibrator units 01 are arranged between adjacent heat sinks 02 to facilitate heat dissipation. . It should be noted that the arrangement of the heat sink 02 can be flexibly adjusted according to the actual layout of the vibrator unit 01 .

In an exemplary embodiment, the height of the heat sink 02 ranges from 0.1 to 0.25 operating wavelengths to avoid electromagnetic interference to the vibrator unit 01 on the reflective plate 03 . It should be noted that the operating wavelength is determined by the center frequency point of the base station's operating frequency band, and is the wavelength of the electromagnetic wave along the propagation direction.

In an exemplary embodiment, the base station can adopt a radome-less design, and the outer surface of the vibrator unit 01 is coated with a waterproof film to directly dissipate the heat introduced into the antenna heat dissipation assembly 10 to the outside world, thereby achieving the purpose of heat dissipation.

Based on this, compared with the existing base station equipment that uses the heat dissipation structure on the back of the casing 40 for single-sided heat dissipation, with the antenna heat dissipation assembly 10, the heat generated by the base station can be dissipated to the outside world through the antenna heat dissipation assembly 10, thereby achieving basic Double-sided cooling of station equipment. Moreover, the double-sided heat dissipation method can reduce the heat dissipation area of the existing chassis 40, thereby reducing the cost of the base station, reducing the weight of the base station, achieving miniaturization and lightweight of the product, and greatly improving the competitiveness of the product.

As shown in Figure 2, Figure 2 is a schematic diagram of the heat dissipation structure of a base station provided by an embodiment of the present application. The base station includes the above-mentioned antenna heat dissipation component 10.

In one embodiment, since the base station adopts the above-mentioned antenna heat dissipation component 10, the base station can achieve the same technical effect as the above-mentioned antenna heat dissipation component 10. The antenna heat dissipation component 10 in this base station includes a reflection plate 03, a plurality of heat sinks 02 and a plurality of oscillator units 01. The heat sink 02 is arranged on the reflection plate 03, and the oscillator unit 01 is arranged between adjacent heat sinks 02. The heat sink 02 and the reflection plate 03 are both made of metal. Based on this, the antenna heat dissipation component 10 of the present application not only has multiple heat sinks 02, but also the heat sinks 02 and the reflection plate 03 are made of metal, which increases the heat conduction area of the entire antenna component, so that the entire antenna can be used for base stations. Based on this, compared to the existing base station equipment that uses the heat dissipation structure on the back of the casing 40 for single-sided heat dissipation, with the help of the antenna heat dissipation component 10, the heat generated by the base station can be dissipated to the outside world through the antenna heat dissipation component 10, and then Realize double-sided heat dissipation of base station equipment. Moreover, the double-sided heat dissipation method can reduce the heat dissipation area of the existing chassis 40, thereby reducing the cost of the base station, reducing the weight of the base station, achieving miniaturization and lightweight of the product, and greatly improving the competitiveness of the product.

In an exemplary implementation, as shown in Figure 3, Figure 3 is a schematic diagram of the heat dissipation structure of a base station provided by an embodiment of the present application. The base station also includes a transceiver board 20 and a casing 40. The antenna heat dissipation component 10 is disposed above the transceiver board 20, and the casing 40 is disposed below the transceiver board 20. A plurality of heat dissipation teeth 41 are provided at the bottom of the casing 40. Based on this, the components on the transceiver board 20 can dissipate heat through the antenna heat dissipation assembly 10 above and the multiple heat dissipation teeth 41 provided at the bottom of the chassis 40 below, thereby realizing double-sided heat dissipation of the base station equipment.

In an exemplary embodiment, the transceiver board 20 and the antenna heat dissipation assembly 10 are in contact with each other through silicone grease, which can speed up heat conduction and further improve the heat dissipation effect. It should be noted that in addition to silicone grease, other thermally conductive adhesives can also be used.

In an exemplary embodiment, as shown in FIG. 3 , a transceiver chip 21 is provided on the lower surface of the transceiver board 20 , and the heat generated by the transceiver chip 21 is directly introduced into the casing 40 for heat dissipation. The heat dissipation teeth 41 are provided at the bottom of the casing 40, so the heat on the casing 40 is transferred to the heat dissipation teeth 41, and the heat is dissipated to the outside through the heat dissipation teeth 41. The transceiver chip 21 is in contact with the chassis 40 through silicone grease, which can speed up heat conduction and further improve the heat dissipation effect. It should be noted that in addition to silicone grease, other thermally conductive adhesives can also be used.

In an exemplary embodiment, as shown in FIG. 3 , a power amplifier 23 and a filter 22 are also provided on the lower surface of the transceiver board 20 . The transceiver chip 21 , the power amplifier 23 and the filter 22 are surface-mounted and soldered. Being electrically connected to the transceiver board 20 can reduce path loss while reducing base station cost and weight, thereby improving product competitiveness.

In an exemplary implementation, in actual applications, when the base station is working, because the power amplifier 23 will generate heat, resulting in a high internal temperature, the heat generated by the power amplifier 23 is transferred to the antenna heat dissipation component through the transceiver board 20 10, that is, on the reflection plate 03, several vibrator units 01 and several heat sinks 02, the heat dissipation efficiency at the location of the power amplifier 23 is improved, thereby preventing the power amplifier 23 from being overheated during operation and causing a reduction in its working performance.

In an exemplary embodiment, as shown in FIG. 3 , the filter 22 is electrically connected to the antenna heat dissipation assembly 10 through the connector 30 . The signal output by the transceiver chip 21 passes through the transceiver board 20 and the power amplifier 23 in sequence; the signal comes out of the power amplifier 23 and enters the filter 22 via the transceiver board 20. The output signal of the filter 22 enters the connector 30 via the transceiver board 20. Finally, it enters the antenna and radiates outward.

In an exemplary implementation, as shown in Figure 3, the base station may include an antenna heat dissipation component 10, a transceiver board 20, a transceiver chip 21, a filter 22, a power amplifier 23 and a chassis 40, where the power amplifier 23 , transceiver chip 21. The filter 22 is located on the lower surface of the transceiver board 20 so that the heat generated by the transceiver chip 21 can be introduced into the casing 40 for heat dissipation, and the heat generated by the power amplifier 23 can be guided into the antenna heat dissipation assembly 10 through the transceiver board 20 for heat dissipation. This enables double-sided heat dissipation of base station equipment.

Based on this, the transceiver chip 21, the power amplifier 23, and the filter 22 are disposed on the lower surface of the transceiver board 20, and the heat generated by the transceiver chip 21 is directly introduced into the casing 40 for heat dissipation. The heat dissipation teeth 41 are provided at the bottom of the casing 40, so the heat on the casing 40 is transferred to the heat dissipation teeth 41, and the heat is dissipated to the outside through the heat dissipation teeth 41. The heat generated by the power amplifier 23 is sequentially introduced to the antenna heat dissipation assembly 10 through the transceiver board 20 for heat dissipation, thereby realizing double-sided heat dissipation on the upper and lower sides of the base station, improving the heat dissipation efficiency of the power amplifier chip and the transceiver chip 21, and at the same time reducing the cost of the base station. The weight of the base station greatly improves product competitiveness.

Embodiments of the present application include: an antenna heat dissipation component and a base station. The antenna heat dissipation component includes a reflection plate, a plurality of heat sinks and a plurality of vibrator units, wherein the heat sinks are arranged on the reflection plate, and the vibrator units are arranged between adjacent heat sinks. Both the heat sink and the reflector are made of metal. Based on this, the antenna heat dissipation component of the present application not only has multiple heat sinks, but also the heat sinks and reflection plates are made of metal, which increases the heat conduction area of the entire antenna component, so that the entire antenna can be used for heat dissipation of the base station. Based on this Compared with the existing base station equipment that uses the heat dissipation teeth on the back of the casing for single-sided heat dissipation, with the help of this antenna heat dissipation component, the heat generated by the base station can be dissipated to the outside world through the antenna heat dissipation component, thereby realizing double-sided heat dissipation of the base station equipment. . Moreover, the double-sided heat dissipation method can reduce the heat dissipation area of the existing chassis, thereby reducing the cost of the base station, reducing the weight of the base station, achieving miniaturization and lightweight of the product, and greatly improving the competitiveness of the product.

The above describes some implementations of the present application, but the present application is not limited to the above-mentioned implementations. Those skilled in the art can also make various equivalent modifications or substitutions without violating the scope of the present application. These equivalents All modifications or substitutions are included in the scope defined by the claims of this application.

Claims

An antenna heat dissipation component includes:

Reflective plate;

A plurality of heat sinks, the heat sinks are arranged on the reflective plate;

A plurality of vibrator units are arranged between adjacent heat sinks. The heat sinks and the reflection plate are both made of metal.
The antenna heat dissipation assembly according to claim 1, wherein the heat dissipation fin and the reflection plate are integrally formed.
The antenna heat dissipation assembly according to claim 1, wherein a plurality of the heat dissipation fins are equidistantly arranged on the upper surface of the reflector, and the plurality of heat dissipation fins are parallel to each other.
The antenna heat dissipation component according to claim 1 or 3, wherein the height of the heat sink ranges from 0.1 to 0.25 operating wavelengths.
A base station, which includes the antenna heat dissipation component according to any one of claims 1 to 4.
The base station according to claim 5, further comprising a transceiver board and a casing, the antenna heat dissipation component is disposed above the transceiver board, the casing is disposed below the transceiver board, and the There are multiple heat dissipation teeth at the bottom of the casing.
The base station according to claim 6, wherein the transceiver board and the antenna heat dissipation component are in contact with each other through silicone grease.
The base station according to claim 6, wherein a transceiver chip is provided on the lower surface of the transceiver board, and the transceiver chip is in contact with the casing through silicone grease.
The base station according to claim 8, wherein the lower surface of the transceiver board is further provided with a power amplifier and a filter, and the transceiver chip, the power amplifier and the filter are surface-mounted and welded to the base station. The transceiver board is electrically connected.
The base station according to claim 9, further comprising a connector through which the filter is electrically connected to the antenna heat dissipation component.